A safety arrangement is provided in a motor vehicle. Methods and systems are described that can improve the performance of equalizers by reducing the effects of error propagation in equalizers that use a Viterbi Decoder. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film. The invention also relates to a transceiver and an integrated circuit comprising such a detection unit. An intermediate element is pivotally attached at one end to the handle frame.